JPH06221517A - Liquid fuel burning device - Google Patents
Liquid fuel burning deviceInfo
- Publication number
- JPH06221517A JPH06221517A JP29282691A JP29282691A JPH06221517A JP H06221517 A JPH06221517 A JP H06221517A JP 29282691 A JP29282691 A JP 29282691A JP 29282691 A JP29282691 A JP 29282691A JP H06221517 A JPH06221517 A JP H06221517A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel
- combustion
- atomizing
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
- B05B7/0846—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with jets being only jets constituted by a liquid or a mixture containing a liquid
Landscapes
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Spray-Type Burners (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、給湯・暖房機器等の熱
源に使用される液体燃料燃焼装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid fuel combustion apparatus used as a heat source for hot water supply / heating equipment.
【０００２】[0002]
【従来の技術】近年石油燃焼機器においては、瞬間性、
燃焼量調節幅の拡大、低騒音化、小型化への要求が強く
なってきている。2. Description of the Related Art In recent years, in oil burning equipment,
There is an increasing demand for expansion of the combustion control range, noise reduction, and miniaturization.
【０００３】従来、この種の液体燃料燃焼装置は大別し
て、液体燃料を噴霧装置で微粒化し、燃焼粒子をそのま
ま燃焼させる装置と、液体燃料を一旦気化して燃焼させ
る装置のものがある。Conventionally, this type of liquid fuel combustion apparatus is roughly classified into an apparatus for atomizing liquid fuel by a spraying apparatus and burning the combustion particles as it is, and an apparatus for vaporizing and burning the liquid fuel once.
【０００４】例えば、前者の噴霧燃焼の装置は、図３に
示すように、燃料タンク３１から供給された液体燃料は
ポンプ３２で加圧され、燃料供給管３３を通って、圧力
噴霧ノズル３４から噴出して霧化され、燃焼室３５に噴
霧される。そして、燃焼用空気は、送風ファン３６によ
り送風路３７を通り、燃焼室３５へ供給される。このと
き、圧力噴霧ノズル３４より噴霧された燃料と燃焼反応
し、火炎を形成する構成であった。For example, in the former spray combustion apparatus, as shown in FIG. 3, the liquid fuel supplied from the fuel tank 31 is pressurized by the pump 32, passes through the fuel supply pipe 33, and is discharged from the pressure spray nozzle 34. It is ejected, atomized, and sprayed into the combustion chamber 35. Then, the combustion air is supplied to the combustion chamber 35 through the air passage 37 by the air blow fan 36. At this time, the fuel sprayed from the pressure spray nozzle 34 reacts with combustion to form a flame.
【０００５】また、後者の気化燃焼の装置は、図４に示
すように、燃料タンク４１から供給された液体燃料は、
ポンプ４２によって送油管４３を通り、ノズル４４から
電気ヒータ４５の埋め込まれた気化筒４６で形成された
高温状態の気化室４７へ液適となって送出され、加熱気
化される。燃焼用空気は送風ファン４８により送風路４
９を通り、ノズル４４の外周に設けたスロート部５０か
ら気化室４７へ供給される。このとき、気化した燃料と
混合し、燃焼室５１内に設けられた炎口５２で火炎を形
成する構成であった。In the latter vaporization and combustion apparatus, as shown in FIG. 4, the liquid fuel supplied from the fuel tank 41 is
The pump 42 passes through the oil feed pipe 43, and the liquid is appropriately delivered from the nozzle 44 to the vaporization chamber 47 in the high temperature state formed by the vaporization cylinder 46 in which the electric heater 45 is embedded, and is vaporized by heating. The combustion air is blown by the blower fan 48 into the blower passage 4
It is supplied to the vaporization chamber 47 from the throat portion 50 provided on the outer periphery of the nozzle 44 through the nozzle 9. At this time, the vaporized fuel was mixed and the flame was formed at the flame port 52 provided in the combustion chamber 51.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら上記従来
の噴霧燃焼の装置（図３）は、圧力噴霧ノズル３４から
噴出される液体燃料の粒子径が大きいので火炎長が長く
なり、機器の小型化が難しかった。また、燃焼装置は燃
料粒子が火炎によって急激に沸騰する際の破裂音によっ
て発生するため、粒径が大きいと低騒音化を図ることが
できなかった。However, in the above-mentioned conventional spray combustion apparatus (FIG. 3), since the particle diameter of the liquid fuel ejected from the pressure spray nozzle 34 is large, the flame length becomes long, and the apparatus can be downsized. was difficult. Further, in the combustion device, noise is not achieved when the particle size is large, because the combustion device is generated by a burst noise when the fuel particles boil rapidly due to the flame.
【０００７】更に、燃焼量を小さくするために燃料の噴
出圧を下げると噴出速度も小さくなって、噴霧粒子径が
大きくなり、良好な燃焼が得られなくなるため燃焼量調
節幅は極めて狭いものとなっていた。Further, when the jet pressure of the fuel is lowered in order to reduce the combustion amount, the jet velocity also decreases, the atomized particle diameter increases, and good combustion cannot be obtained, so that the combustion amount adjustment range is extremely narrow. Was becoming.
【０００８】一方、気化燃焼の装置（図４）では、液体
燃料を気化させて燃焼させるため、構造が複雑になると
ともに、気化筒４６および気化室４７を加熱するための
電力が必要であるのに加え、昇温するための予熱時間が
必要なため、瞬時着火燃焼ができず、瞬間性の悪いもの
であった。On the other hand, in the vaporization combustion apparatus (FIG. 4), since the liquid fuel is vaporized and burned, the structure becomes complicated, and electric power for heating the vaporization cylinder 46 and the vaporization chamber 47 is required. In addition, since the preheating time for raising the temperature is required, instantaneous ignition and combustion cannot be performed, and the instantaneous property is poor.
【０００９】本発明は上記課題を解決するもので、燃焼
の瞬間性、低騒音化、小型化、燃焼量調節幅の拡大を図
ることのできる液体燃料燃焼装置を提供することを目的
とする。The present invention solves the above problems, and an object of the present invention is to provide a liquid fuel combustion apparatus capable of achieving instantaneousness of combustion, noise reduction, size reduction, and expansion of combustion amount adjustment range.
【００１０】[0010]
【課題を解決するための手段】本発明の液体燃料燃焼装
置は上記目的を達成するために、所定の角度に対向して
設けられた少なくとも２個以上の燃料ノズルと、この燃
料ノズル外周にあって燃料ノズルの噴出流に微粒化用空
気を供給する空気ノズルとからなる微粒化装置と、燃料
ノズルに液体燃料を供給する燃料供給手段と、空気ノズ
ルに空気を供給する空気供給手段と、一次空気を供給す
る一次空気供給部と、微粒化手段から噴出した燃料粒子
と空気を混合する混合室と、この混合室下流にあり炎口
を有するバーナと、このバーナに空気を供給する二次空
気供給部から構成している。In order to achieve the above object, the liquid fuel combustion apparatus of the present invention is provided with at least two or more fuel nozzles provided facing each other at a predetermined angle and on the outer periphery of the fuel nozzle. Atomizing device comprising an air nozzle for supplying atomizing air to the jet flow of the fuel nozzle, a fuel supplying means for supplying liquid fuel to the fuel nozzle, an air supplying means for supplying air to the air nozzle, and a primary A primary air supply unit for supplying air, a mixing chamber for mixing the fuel particles ejected from the atomizing means with air, a burner downstream of the mixing chamber and having a flame port, and a secondary air for supplying air to this burner. It consists of a supply unit.
【００１１】[0011]
【作用】本発明は上記構成によって、燃料ノズルから噴
射した液体燃料に、高速の空気流によるせん断力を作用
させて微粒化し、さらに衝突によって均一な微小粒子と
するので、液体燃料の噴霧量の広い調節範囲で、粒子径
の小さな粒子を得ることができ、燃焼量調節幅を大きく
とることができる。また、小さな燃料粒子を空気と混合
した状態で可燃混合気としてバーナに送り込むため、瞬
時着火燃焼が可能であるとともに、霧化粒子で予混合的
に燃焼させるので、火炎の短炎化や機器の小型化を図る
ことができる。また微小な燃料粒子のみを燃焼させるの
で、燃焼騒音を低減することができる。With the above-described structure, the liquid fuel injected from the fuel nozzle is subjected to a shearing force due to a high-speed air flow to atomize the liquid fuel, and the collision produces uniform fine particles. It is possible to obtain particles having a small particle diameter in a wide adjustment range, and it is possible to increase the combustion amount adjustment range. In addition, since small fuel particles are sent to the burner as a combustible mixture in the state of being mixed with air, instantaneous ignition combustion is possible, and because premixed combustion is performed with atomized particles, flame shortening and equipment The size can be reduced. Further, since only minute fuel particles are burned, combustion noise can be reduced.
【００１２】[0012]
【実施例】以下、本発明の一実施例を図１および図２を
参照しながら説明する。図に示すように、霧化室１内に
は微粒化装置２が設けられ、この微粒化装置２には燃料
供給管３を接続し、液体燃料が一定量に保たれた燃料タ
ンク４から液体燃料を電磁ポンプ５で加圧してくみ上
げ、微粒化装置２に供給する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in the figure, an atomization device 2 is provided in the atomization chamber 1, a fuel supply pipe 3 is connected to the atomization device 2, and liquid fuel is supplied from a fuel tank 4 in which a constant amount of liquid fuel is maintained. The fuel is pressurized by the electromagnetic pump 5, pumped up, and supplied to the atomizer 2.
【００１３】また、霧化室１内で飛散した液体燃料は戻
り管６により戻される。そして、空気供給管７により空
気供給手段８から送られた微粒化空気を微粒化装置２に
供給するように設け、微粒化装置の下流側には混合板９
を設けて混合室１０を形成し、混合室１０の下流にはバ
ーナ１１を設け、空気と混合した燃料粒子は均圧板１２
で均一に分散され、炎口１３に供給され燃焼するように
設けられている。The liquid fuel scattered in the atomization chamber 1 is returned by the return pipe 6. The atomizing air sent from the air supply means 8 by the air supply pipe 7 is provided so as to be supplied to the atomizing device 2, and the mixing plate 9 is provided on the downstream side of the atomizing device.
Is provided to form a mixing chamber 10, a burner 11 is provided downstream of the mixing chamber 10, and the fuel particles mixed with the air have a pressure equalizing plate 12
It is provided so that it is evenly dispersed and supplied to the flame nozzle 13 to burn.
【００１４】また、送風機１４から送られた空気の一部
を霧化室１に供給する一次空気供給部１５と、送風機１
４から送られた空気の一部をバーナ１１に供給する二次
空気供給部１６を設け、二次空気は炎口１３に細分割さ
れた二次空気孔（図示せず）に供給するように構成す
る。The primary air supply unit 15 for supplying a part of the air sent from the blower 14 to the atomization chamber 1 and the blower 1
The secondary air supply unit 16 for supplying a part of the air sent from the No. 4 to the burner 11 is provided so that the secondary air is supplied to the secondary air holes (not shown) subdivided into the flame nozzle 13. Constitute.
【００１５】次に、微粒化装置２の詳細について図２を
参照しながら以下に説明する。図に示すように、２つの
ノズルブロック１７を所定の角度で中心線Ｙ−Ｙ′に対
称に対向させて構成し、内部には先端中央に微細な燃料
噴出孔１８を有した燃料ノズル１９をノズルホルダー２
０により支持するように設け、前記燃料ノズル１９およ
びノズルホルダー２０には燃料通路２１を形成し、ノズ
ルホルダー２０後部に接続された燃料供給管３から液体
燃料が供給されるように構成されている。Next, details of the atomizer 2 will be described below with reference to FIG. As shown in the drawing, two nozzle blocks 17 are arranged symmetrically with respect to a center line YY 'at a predetermined angle, and a fuel nozzle 19 having a fine fuel injection hole 18 at the center of the tip is formed inside. Nozzle holder 2
0, a fuel passage 21 is formed in the fuel nozzle 19 and the nozzle holder 20, and liquid fuel is supplied from a fuel supply pipe 3 connected to the rear portion of the nozzle holder 20. .
【００１６】また、燃料ノズル１９内の燃料通路２１先
端には旋回部２２を設け、その先端にはテーパ部２３を
形成し、このテーパ部２３には旋回用の溝（図示せず）
が設けられ、前記旋回部２２は燃料ノズル１９先端内壁
に固定具２４により圧着されている。そして、空気ノズ
ル２５は先端部に空気噴出孔２６を設け、燃料ノズル１
９を装着したノズルホルダー２０は、空気ノズル２５内
に装着され空気ノズル２５先端と燃料ノズル１９先端に
わずかな間隙２７を設定するように縮径部２８にて固定
される。また、燃料ノズル１９と空気ノズル２５間には
空気通路２９が設けられ、空気供給管７から微粒化用空
気が供給される。以上の如くして燃料ノズル１９と空気
ノズル２５は軸線Ｘ1 −Ｘ1 ′に対し同心上に設定され
る。A swirl portion 22 is provided at the tip of the fuel passage 21 in the fuel nozzle 19, and a taper portion 23 is formed at the tip thereof. A swirl groove (not shown) is formed in the taper portion 23.
The swirl part 22 is pressure-bonded to the inner wall of the tip of the fuel nozzle 19 by a fixture 24. Further, the air nozzle 25 is provided with an air ejection hole 26 at the tip end thereof, and the fuel nozzle 1
The nozzle holder 20 having 9 mounted therein is mounted in the air nozzle 25 and is fixed by the reduced diameter portion 28 so as to set a slight gap 27 between the tip of the air nozzle 25 and the tip of the fuel nozzle 19. An air passage 29 is provided between the fuel nozzle 19 and the air nozzle 25, and atomizing air is supplied from the air supply pipe 7. As described above, the fuel nozzle 19 and the air nozzle 25 are set concentrically with respect to the axis X 1 -X 1 ′.
【００１７】上記構成において、電源（図示せず）を投
入すると、電磁ポンプ５が作動し、燃料タンク４から液
体燃料を吸い上げて、加圧状態で燃料供給管３を通し燃
料ノズル１９内の燃料通路２１に供給され旋回部２２の
溝を通して燃料に旋回を付与した後、燃料噴出孔１８か
ら噴出される。In the above structure, when a power source (not shown) is turned on, the electromagnetic pump 5 operates to suck up the liquid fuel from the fuel tank 4 and, under pressure, the fuel in the fuel nozzle 19 through the fuel supply pipe 3. After being supplied to the passage 21 and swirling the fuel through the groove of the swirling portion 22, the fuel is jetted from the fuel jet hole 18.
【００１８】これと同時に空気供給手段８が作動し、微
粒化用空気が空気供給管７を通して空気通路２９に供給
され、旋回流となって間隙２７を通して空気噴出孔２６
から高速で噴出される。したがって燃料噴出孔１８から
噴出した燃料は空気流によってせん断され、微粒化され
る。At the same time, the air supply means 8 is actuated, and atomizing air is supplied to the air passage 29 through the air supply pipe 7, forming a swirling flow and passing through the gap 27 through the air ejection holes 26.
Is ejected at high speed from. Therefore, the fuel ejected from the fuel ejection holes 18 is sheared by the air flow and atomized.
【００１９】通常、微粒化用空気を流さない場合、液体
燃料は、燃料噴出孔１８から薄い膜状に噴出され、膜先
端の乱れによって微粒化が促進するが、この場合得られ
る粒子径はかなり大きい。しかし、実施例では微粒化用
空気を供給することにより、薄い液膜状の液体燃料に直
接高速の空気を当てるので、低い空気圧で微粒化が可能
である。また、燃料供給圧を下げて燃料噴出量を減少さ
せた場合、液体燃料自体の噴霧状態は悪化するが、高速
の空気流で微粒化するので、得られる粒子の状態はほと
んど変化しない。Usually, when the atomizing air is not flown, the liquid fuel is ejected in a thin film form from the fuel ejection holes 18, and the disordering of the film tip accelerates the atomization. In this case, the obtained particle size is considerably large. large. However, in the embodiment, by supplying the atomizing air, the high-speed air is directly applied to the thin liquid-film liquid fuel, so that the atomizing can be performed with a low air pressure. Further, when the fuel supply pressure is reduced to reduce the fuel injection amount, the atomized state of the liquid fuel itself is deteriorated, but since it is atomized by a high-speed air flow, the state of the obtained particles hardly changes.
【００２０】さらに、実施例ではノズルブロック１７を
２箇所定の角度で中心線Ｙ−Ｙ´に対し対称に対向させ
ているので、２つのノズルブロック１７から微粒化され
て噴出した燃料粒子と空気の混合流は各々の軸線Ｘ1 −
Ｘ1 ′とＸ2 −Ｘ2 ′の交点で衝突して再度微粒化され
る。したがって、燃料噴霧量の広い調節範囲で非常に小
さな粒子を効果的に得ることができる。Further, in the embodiment, since the nozzle blocks 17 are symmetrically opposed to the center line Y-Y 'at two fixed angles, the fuel particles and the air atomized and ejected from the two nozzle blocks 17 are ejected. The mixed flow of each axis X 1 −
The particles collide with each other at the intersection of X 1 ′ and X 2 −X 2 ′ and atomize again. Therefore, very small particles can be effectively obtained in a wide adjustment range of the fuel spray amount.
【００２１】このように微粒化装置２によって液体燃料
は粒径の均一な微粒子群となって霧化室１に噴霧され
る。一つのノズルブロック１７からの噴出流はかなり高
速であるであるが、噴出流を衝突させているので、衝突
後の粒子速度はかなり低減されるのに加え、微粒化用空
気が一次空気の一部として作用するので空気と燃料粒子
の混合状態は良好に保たれる。霧化室１に噴霧された粒
子は一次空気供給部１５から供給された空気と混合され
ながら、混合室１０に導入され、十分に混合される。こ
の空気と燃料の混合気は、混合度合をより高めながらバ
ーナ１１へ送られ均圧板１２によってバーナ１１全体に
均一に分散され、可燃混合気体となって炎口１３に供給
され、予混合燃焼する。また、炎口１３には二次空気供
給部１６から燃焼用空気が供給されるので短炎を形成す
る。As described above, the liquid fuel is atomized into the atomization chamber 1 by the atomizer 2 as a group of fine particles having a uniform particle size. The jet flow from one nozzle block 17 is considerably high speed, but since the jet flows collide with each other, the particle velocity after the collision is considerably reduced, and the atomizing air is one of the primary air. Since it acts as a part, the mixed state of the air and the fuel particles is kept good. The particles sprayed in the atomization chamber 1 are introduced into the mixing chamber 10 while being mixed with the air supplied from the primary air supply unit 15, and are sufficiently mixed. This air-fuel mixture is sent to the burner 11 while further increasing the degree of mixing, and is uniformly dispersed by the pressure equalizing plate 12 over the entire burner 11, becomes a combustible mixture gas, is supplied to the flame opening 13, and is premixed and burned. . Further, the combustion air is supplied to the flame port 13 from the secondary air supply unit 16, so that a short flame is formed.
【００２２】以上のように、燃料ノズル１９から噴射し
た液体燃料に、高速の空気流によるせん断力を作用させ
て微粒化し、さらに衝突によって均一な微小粒子とし、
微粒化用空気と混合しながら炎口１３に供給するととも
に二次空気も供給されるようになっているので優れた燃
焼特性を得ることができる。また、実施例の微粒化装置
２によれば噴霧量の広い調節範囲で均一な微小粒子を得
ることができるので、燃焼量調節幅を大きくとることが
できる。微粒化用空気は一次空気の一部として作用する
ので、炎口１３で予混合的燃焼をすることができる。し
たがって、燃焼速度を拡散燃焼よりも大きくし、炎口１
３での火炎の短炎化を図ることができるので装置の小型
化が可能となる。また、均一で微細な燃料粒子を得るこ
とができるので従来の噴霧燃焼のように大きな燃料粒子
が火炎によって急激に沸騰する際の破裂音に起因する燃
焼騒音を低減することができる。さらに、微粒化された
燃料粒子と微粒化用空気の混合気に一次空気が供給され
可燃混合気となって炎口１３に供給されるので、瞬時点
火燃焼が可能になり瞬間性を得ることができる。As described above, the liquid fuel injected from the fuel nozzle 19 is atomized by applying a shearing force due to a high-speed air flow, and further made into uniform fine particles by collision,
Since the secondary air is supplied while being supplied to the flame nozzle 13 while being mixed with the atomizing air, excellent combustion characteristics can be obtained. Further, according to the atomization device 2 of the embodiment, it is possible to obtain uniform fine particles in a wide adjustment range of the spray amount, so that the combustion amount adjustment range can be widened. Since the atomizing air acts as a part of the primary air, premixed combustion can be performed at the flame nozzle 13. Therefore, the combustion speed is set to be higher than that of diffusion combustion, and
Since the flame in 3 can be shortened, the device can be downsized. Further, since it is possible to obtain uniform and fine fuel particles, it is possible to reduce combustion noise caused by a burst noise when large fuel particles are rapidly boiled by a flame as in conventional spray combustion. Further, since the primary air is supplied to the mixture of atomized fuel particles and the atomizing air and becomes a combustible mixture and is supplied to the flame port 13, instantaneous ignition combustion is possible and instantaneousness can be obtained. it can.
【００２３】[0023]
【発明の効果】以上の実施例から明らかなように、本発
明の液体燃料燃焼装置によれば次の効果が得られる。 （１）燃料ノズルから噴射した液体燃料に高速の空気流
によるせん断力を作用させて微粒化し、さらに衝突によ
って均一な微小粒子を得ることができる。この微小粒子
に微粒化用空気と一次空気と混合しながら炎口に供給す
るとともに二次空気も供給されるようになっているの
で、優れた燃焼特性を得ることができる。 （２）微粒化装置の空気流によるせん断力と衝突力によ
って噴霧量の広い調節範囲で均一な微小粒子が得られる
ので、燃焼量調節幅を大きくとることができる。 （３）均一で微細な燃料粒子を得ることができるので従
来の噴霧燃焼のように大きな燃料粒子が火炎によって急
激に沸騰する際の破裂音に起因する燃焼騒音を低減する
ことができる。 （４）微粒化用空気は一次空気の一部として作用するの
で、炎口で予混合的燃焼をすることができる。したがっ
て、燃焼速度を拡散燃焼よりも大きくし、炎口での火炎
の短炎化を図ることができるので装置の小型化が可能と
なる。 （５）微粒化された燃料粒子と微粒化用空気の混合に一
次空気が供給され可燃混合気となって炎口に供給される
ので、瞬時点火燃焼が可能になり瞬間性を得ることがで
きる。As is apparent from the above embodiments, the liquid fuel combustion apparatus of the present invention has the following effects. (1) The liquid fuel injected from the fuel nozzle is subjected to a shearing force by a high-speed air flow to be atomized, and further, it is possible to obtain uniform fine particles by collision. Since the fine particles are supplied to the flame port while being mixed with the atomizing air and the primary air, the secondary air is also supplied, so that excellent combustion characteristics can be obtained. (2) Since the uniform fine particles can be obtained in a wide adjustment range of the spray amount by the shearing force and the collision force due to the air flow of the atomizer, the combustion amount adjusting range can be widened. (3) Since it is possible to obtain uniform and fine fuel particles, it is possible to reduce combustion noise caused by a burst noise when large fuel particles are rapidly boiled by a flame as in conventional spray combustion. (4) Since the atomizing air acts as a part of the primary air, premixed combustion can be performed at the flame mouth. Therefore, the combustion speed can be made higher than that of diffusion combustion, and the flame at the flame mouth can be shortened, so that the device can be downsized. (5) Since primary air is supplied to the mixture of atomized fuel particles and atomizing air to form a combustible mixture and is supplied to the flame mouth, instantaneous ignition combustion is possible and instantaneousness can be obtained. .
【図１】本発明の一実施例における液体燃料燃焼装置の
要部断面図FIG. 1 is a sectional view of an essential part of a liquid fuel combustion device according to an embodiment of the present invention.
【図２】本発明の一実施例における液体燃料燃焼装置内
の微粒化装置の要部断面図FIG. 2 is a sectional view of an essential part of an atomizer in a liquid fuel combustion apparatus according to an embodiment of the present invention.
【図３】従来の液体燃料燃焼装置の要部断面図FIG. 3 is a sectional view of a main part of a conventional liquid fuel combustion device.
【図４】従来の他の液体燃料燃焼装置の要部断面図FIG. 4 is a sectional view of a main part of another conventional liquid fuel combustion apparatus.
２ 微粒化装置 ４ 燃料供給手段 ８ 空気供給手段 １０ 混合室 １２ バーナ １３ 炎口 １５ 一次空気供給部 １６ 二次空気供給部 １９ 燃料ノズル ２５ 空気ノズル 2 atomizer 4 fuel supply means 8 air supply means 10 mixing chamber 12 burner 13 flame port 15 primary air supply section 16 secondary air supply section 19 fuel nozzle 25 air nozzle
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成３年１１月２９日[Submission date] November 29, 1991
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】また、霧化室１内で飛散した液体燃料のう
ち、壁等に付着して結露したものは戻り管６により戻さ
れる。そして、空気供給管７を空気供給手段８から送ら
れた空気を微粒化装置２に供給するように設け、微粒化
装置の下流側には混合板９を設けて混合室１０を形成
し、混合室１０の下流にはバーナ１１を設け、空気と混
合した燃料粒子は均圧板１２で均一に分散され、炎口１
３に供給され燃焼するように設けられている。[0013] The liquid fuel scattered in atomization chamber within 1
Then, what has adhered to the wall or the like and has condensed is returned by the return pipe 6. Then, the air supply pipe 7 is sent from the air supply means 8.
The mixed air is provided to supply the atomized device 2 to the atomizing device 2, a mixing plate 9 is provided on the downstream side of the atomizing device to form a mixing chamber 10, and a burner 11 is provided downstream of the mixing chamber 10 to remove the air. The mixed fuel particles are uniformly dispersed by the pressure equalizing plate 12, and the flame nozzle 1
3 is provided so as to be burned.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 麻生 智倫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomonori Aso 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (1)
も２個以上の燃料ノズルと、これら各々の燃料ノズル外
周にあって燃料ノズルからの液体燃料の噴出流に微粒化
用空気を供給する空気ノズルとからなる微粒化装置と、
前記燃料ノズルに液体燃料を供給する燃料供給手段と、
前記空気ノズルに微粒化用空気を供給する空気供給手段
と、一次空気を供給する一次空気供給部と、前記微粒化
装置から噴出した燃料粒子と空気を混合する混合室と、
この混合室下流にあり炎口を有するバーナと、このバー
ナに空気を供給する二次空気供給部とからなる液体燃料
燃焼装置。1. At least two fuel nozzles provided facing each other at a predetermined angle, and atomizing air is supplied to the jet flow of liquid fuel from the fuel nozzles at the outer periphery of each of these fuel nozzles. An atomizer comprising an air nozzle,
Fuel supply means for supplying liquid fuel to the fuel nozzle,
An air supply means for supplying atomizing air to the air nozzle, a primary air supply part for supplying primary air, and a mixing chamber for mixing air with fuel particles ejected from the atomizing device,
A liquid fuel combustion apparatus comprising a burner located downstream of the mixing chamber and having a flame port, and a secondary air supply section for supplying air to the burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3292826A JP2797783B2 (en) | 1991-11-08 | 1991-11-08 | Liquid fuel combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3292826A JP2797783B2 (en) | 1991-11-08 | 1991-11-08 | Liquid fuel combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06221517A true JPH06221517A (en) | 1994-08-09 |
| JP2797783B2 JP2797783B2 (en) | 1998-09-17 |
Family
ID=17786851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3292826A Expired - Fee Related JP2797783B2 (en) | 1991-11-08 | 1991-11-08 | Liquid fuel combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2797783B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0839578A1 (en) * | 1996-10-30 | 1998-05-06 | The Boc Group, Inc. | Atomising device and method |
| WO2013107881A1 (en) * | 2012-01-20 | 2013-07-25 | Ecotecfuel Llc | Method and apparatus for separating evaporatable components from a fluid |
| CN105546531A (en) * | 2016-02-02 | 2016-05-04 | 深圳涌源设备科技开发有限公司 | Combustion machine |
-
1991
- 1991-11-08 JP JP3292826A patent/JP2797783B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0839578A1 (en) * | 1996-10-30 | 1998-05-06 | The Boc Group, Inc. | Atomising device and method |
| WO2013107881A1 (en) * | 2012-01-20 | 2013-07-25 | Ecotecfuel Llc | Method and apparatus for separating evaporatable components from a fluid |
| CN105546531A (en) * | 2016-02-02 | 2016-05-04 | 深圳涌源设备科技开发有限公司 | Combustion machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2797783B2 (en) | 1998-09-17 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |